Sarciadong Tilapia with Leftover Daing by Mommy Shelette.
These days the adjective sarsyado is used to describe a fried fish that has been additionally cooked by simmering with tomatoes and onions, and often a beaten egg.
The word derives from the Spanish salsa, which means “sauce.”
Spelling variations: sarsyado, sarsiyado, sarciado, sarsiado
Basically, you sauté garlic, onions, and tomatoes. Add a beaten egg. Then drop in the fried fish. Simmer until cooked.
From the 1940s, below is a recipe in Tagalog for Sarsiado:
5 malalaking isda
4 butil na bawang
1/2 kutsarang asin
6 na kutsarang mantika
1 1/2 tasang tubig
1 sibuyas na malaki
Igisa ang bawang, sibuyas at kamatis. Lagyan ng isang itlog na binati, saka ihulog ang isdang prito. Pakuluin hanggang maluto.